Scuola Superiore Di Studi Universitari E Di Perfezionamento Sant'anna

Matteo Fantozzi

Nicola Vitiello

Francesco Giovacchini

Marco Cempini

Mario Cortese

Matteo Moise

Andrea Baldoni

Marco Muscolo

Simona Crea

Dario Marconi

Matteo MoisÉ

The object of the present invention is a new configuration of torsional spring with a flat structure, capable of ensuring response linearity, modelling ease and accuracy, versatile use while safeguarding the possibility of the inner passage of wiring or of any accessory components along the transmission/torsion axis.

Planar torsional spring

A monolateral actuation system of a hip articulation is configured to be connected to an orthosis. The monolateral actuation system comprises a motor device arranged to provide assistive torque at a motor axis; a transmission device is connected to the motor axis and arranged for transferring the assistive torque onto an output axis corresponding to an axis of flexion-extension of the hip articulation and parallel to the motor axis. The transmission device includes a cable and first and second pulleys connected to one another by the cable. The first and second pulleys are arranged to extend relative to one another variably. A fixed frame is provided for connecting to the orthosis onto which the motor device and the transmission device are mounted.

Actuation system for hip orthosis

A kinematical chain () for assisting a spherical motion of an anatomical joint () of a finger of the hand () of a user, said anatomical joint () having centre of rotation P and being arranged for allowing a relative motion of a finger of the hand () with respect to a portion of hand () of the user, said finger of the hand () defining a longitudinal direction &#x3b4;. The kinematical chain () comprises a first rotational joint () engaged to the finger of the hand () and to a first connection link (), said first rotational joint () arranged to provide a relative rotation &#x3b1; between the first connection link () and the finger of the hand () about a rotation axis x coincident with the longitudinal direction &#x3b4;. The kinematical chain () also comprises a third rotational joint () engaged to the portion of hand () and to a second connection link (), said third rotational joint () arranged to provide a relative rotation &#x3b3; between the second connection link () and the portion of hand () about a rotation axis z integral to the portion of hand (). The kinematical chain () comprises then a second rotational joint () engaged to the first connection link () and to the second connection link (), said second rotational joint () arranged to provide a relative rotation &#x3b2; between the first connection link () and the second connection link () about a rotation axis y. The rotation axes x, y and z intersect in a centre of rotation O, in such a way that the kinematical chain () allows a spherical motion of the longitudinal direction &#x3b4; with respect to the portion of hand () about the centre of rotation P.

Kinematical chain for assisting the motion of a spherical joint

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Viareggio, Italy

Matteo Fantozzi